Connected on 2014-06-25 16:30:00 from Adams, Colorado, United States
- Bugscope Team today's sample is pumping down
- Bugscope Team waiting for vacuum to get a little better
- Bugscope Team almost there
- Bugscope Team now we're making presets
- Teacher Hello
- Bugscope Team Hello!
- Bugscope Team Welcome to Bugscope!
- Teacher Thanks! We're excited. I'll soon have about 20 teens watching.
- Bugscope Team Sweet!
- Bugscope Team This is a mosquito that bit me last week.
- Teacher Wow, is your blood in there? :)
Bugscope Team probably won't be able to see that
- Bugscope Team we can easily see blood cells, but I don't expect to see them. I'
- Bugscope Team I'll look
- Bugscope Team hi
- Teacher Hello!
Bugscope Team Is everyone there?
- Teacher No, people are still coming in
Bugscope Team cool I am still collecting presets but we can start as soon as you wish
- Teacher OK most of us are here now!
- Bugscope Team this is the pore through which a spider delivers its venom'
- Bugscope Team we're getting a victim's eye view of a spider here
- Teacher Scary!
- Bugscope Team you can see its eyes ar the top of where we're looking now
- Bugscope Team to the left and the right, the smooth things are the fangs
- Bugscope Team cool fact: venom is injected through bites or stings. poison is ingested (or licked if you like the taste of frogs)
- Bugscope Team maybe you can see now -- the fang is folded against the chelicer
- Bugscope Team it looks kind of like a stork, here
- Teacher It does look like a stork
- Bugscope Team in the center, at a diagonal, is the fang
- Bugscope Team let's look at the other one for a sec
- Bugscope Team we cannot see all of it; the tip is covered with setae
- Bugscope Team here's a ridge of toothlike elements that help the spider hold its prey as it bites
- Teacher What are the jagged things?
Bugscope Team the spider's retention plan
- Bugscope Team the chelicers are kind of like jaws that can be opened wide, and at their ends are the fangs
- Bugscope Team spiders suck their prey up in liquid fashion, like a milkshake
- Bugscope Team like a toothy mohawk
Bugscope Team haha
- Bugscope Team Michelle you can select from any of the presets to get the 'scope to drive to that place.
- Teacher what kind of spider is this?
Bugscope Team not sure -- we're not very good wtih spiders, which shrivel quite a lot when they die
- Bugscope Team I think this is a female because its palps seem small
- Bugscope Team it was a small spider
- Bugscope Team the palps, or pedipalps, are on the front of the body, and we see them here curved over the place where we'd seen the chelicerae.
- Bugscope Team I'd be a bit easier to tell what kind of spider it is if you look at the eyes. Unfortunately, color/pattern is another way you ID spiders
- Teacher They want to see the butt!
Bugscope Team this is it!
- Bugscope Team these are the spinnerets
- Teacher Is that where the web comes out?
Bugscope Team yes it is!
- Bugscope Team some spiders and some insects as well, especially caterpillars, which are larvae, produce web from other places
- Teacher We have a question from Mikaela: What do they eat?
Bugscope Team they eat insects and spiders and other arthropods
- Bugscope Team some spiders are large enough to eat things like birds
- Bugscope Team they use their fangs to inject digestive fluids into their prey
- Teacher Another question: How do they die or what do you think killed this? Did you step on him, Scot?
Bugscope Team we might have caught this one and frozen it, then let it air dry
Bugscope Team the only thing here that I actively killed was the mosquito
- Bugscope Team Michelle, as a side note, freezing is the most humane to kill an insect as opposed to any other method
- Bugscope Team Tanya is an entomologist who's helping us today.
- Teacher Armando asks does the poop and web come out of the same place?
Bugscope Team from the same area- the abdomen. the web comes from spinnerets located on the abdomen
- Bugscope Team this is an aphid
- Bugscope Team you can see the aphid's eyes -- compound eyes, and you can see its proboscis, which it sticks into leaves
- Teacher A question for Tanya: how do you identify insects?
- Bugscope Team There are a lot of ways actually
- Bugscope Team this is a stinkbug
- Bugscope Team related to the aphid -- they're both true bugs
- Bugscope Team also related to cicadas
- Teacher The stink bug's eyes look smoother
- Bugscope Team The biggest methods are mouthpart and wing venation
- Bugscope Team You can see that the last two insects we looked at have almost a straw like mouth between their eye
- Bugscope Team this straw like mouth part makes them both Hemipteran
- Bugscope Team Spiders create a special silk, they have two body parts and eight legs
- Teacher Question from Mikhaela: What is the difference between a spider and a bug?
Bugscope Team spiders are arachnids, and bugs are generally insects; insects have six legs, a head, a thorax, an abdomen, and two antennae
- Bugscope Team Insects have 3 body parts, wings (or remnants of wings), and 6 legs
- Bugscope Team spiders have a cephalothorax -- their head and thorax are fused into one body part
- Bugscope Team Fun fact: All bugs are insects, but not all insects are bugs! The stink bug here is actually a bug (because of the straw mouth part) but a cricket and a butterfly are not bugs, they're insects
- Bugscope Team the other main body part of a spider is its abdomen
- Bugscope Team insects also have 2 compound eyes as adults. spiders have up to 8 simple eyes
- Bugscope Team insects, especially flying insects, sometimes have three small simple eyes, in addition to their compound eyes, called ocelli
- Teacher How many claws do they have?
Bugscope Team one at the end of each leg
- Teacher Can we zoom out to see the body shape of the stinkbug?
Bugscope Team it is so big we cannot see all of it at once
- Bugscope Team the stink glands open beneath the second pair of legs, but they are kind of gummed up
- Bugscope Team They are stink bugs because they emit a nasty smelling chemical when they are scared or threatened
- Teacher Why are they called stinkbugs?
Bugscope Team they produce a scent that not even they like
- Bugscope Team it has a shield shape, and we can see that it has a spiny edge to its exoskeleton
- Teacher Is it a gas or liquid that smells and is it a really strong smell?
Bugscope Team I think it is a liquid that diffuses into the air -- a volatile liquid
- Teacher How long do they live?
Bugscope Team generally, probably about 6 weeks as adults; Tanya or Cate may have a better number
Bugscope Team Their life span varies from stinkbug to stinkbug, some adults hide away and can live all winter
- Bugscope Team this is one of the spiracles, through which insects breathe
- Teacher Can humans smell it?
Bugscope Team oh yes they can :)
Bugscope Team some stink bugs emit chemicals that smell like coriander - a spice we use in cooking!
- Bugscope Team here we can see both the proboscis of the mosquito and the fascicle -- the biting part
- Bugscope Team the fascicle is usually fully inside the proboscis
- Bugscope Team we've seen that the fascicle has six parts, in mosquitos we looked at
- Teacher How wide can the stinkbug's legs stretch out?
Bugscope Team depends on the type of sink bug, but they would likely span, from where they attach to their body, no more than 2x their body width
- Teacher Do mosquitos have spit?
Bugscope Team yes they have saliva, which keeps your blood from clotting; sometimes it also makes you itch
- Bugscope Team there are four long components that cut, called lancets or stylets
- Bugscope Team there is on central component that delivers the saliva and also collects the blood, in an internal tube
- Teacher Do they have teeth?
Bugscope Team no teeth
Bugscope Team the tnings we see now are super sharp, the closest thing to teeth
Bugscope Team like the serrations on the steak knife
- Teacher Somebody asked: Why do they need human blood?
Bugscope Team the females need the blood meal to have enough energy to lay their eggs
- Teacher What is the ommatidia?
Bugscope Team it's the individual facet of the insect's compound eye
- Teacher And, do any other animals or insects eat mosquitos?
Bugscope Team Yes! There are lost of animals that eat mosquitoes, fish, insects, birds, and spiders
Bugscope Team Many animals eat mosquitoes when they are larvae - mosquito larvae live in water which makes the mosquitoes a tasty snack for many organisms living in the lake, pond, river, or stream
- Bugscope Team often we think a certain insect may have no value in the world, and we're always surprised that it is necessary; the best example is bees and other pollinators
Bugscope Team Yes! Especially the male mosquitoes because male mosquitoes don't drink blood
- Teacher What are the tinier spheres on the ommatidia?
Bugscope Team we don't know! they might be latex, from the air, from tires
Bugscope Team some of them are less than a micrometer in diameter, meaning that we are seeing objects on the nanoscale
Bugscope Team we can also see that the tiny bumps on the ommatidia are all on the nanoscale; we think they help collect and direct light
- Bugscope Team we can tell male from female mosquitoes (males don't bite) because the males have ornate antennae and the females have kind of boring antennae like the one we see here, on the righte
- Bugscope Team Thankfully the insect body can only sustain its smaller size -- they cannot get as large as us.
- Teacher Do they have organs that humans have like liver or bladder?
Bugscope Team Insects have organs with similar functions as human organs, but none of them resemble human organs
Bugscope Team For example, humans have kidneys that help filter fluids and absorb and minerals that the body might need. Insects have malpighian tubules which are long tubes at the end of the insects digestion system, which function very similarly to a human kidney
- Bugscope Team mosquitoes, butterflies, moths, and silverfish, along with few other insects, have scales
- Teacher Do the male and female larvae look different?
Bugscope Team I'm not sure -- I think they look the same.
Bugscope Team They look the same
- Teacher Do the male and female mosquitoes fight eachother?
Bugscope Team you mean do they get in tiny high-pitched arguments?
- Bugscope Team we're looking at mosquito scales now
- Bugscope Team having scales on wings and bodies helps protect their bearers from spider webs
- Teacher I think we're at our attention span limit. Thank you all so much for the tour of insects!
- Bugscope Team these are the mandibles of a small flat beetle -- I'm sorry I don't remember what kind it is.
- Bugscope Team thank you for joining us today
- Bugscope Team Thank you, Everyone!
- Bugscope Team Thank you everyone :)
- Teacher Thanks!!!
- Bugscope Team Bye!